Elsevier retracts the least and reinstates the most, new analysis finds

Frequencies of reasons 10 publishers have given for retracting articles (source).

While Elsevier outcompetes other publishers in terms of sheer volume, it also has the lowest retraction rate and highest rate of reinstating articles among nine top publishers of scholarly articles, a recent study has found. The study also found a tenth publisher to be an outlier in terms of reasons for retraction. 

“Every publisher has their own retraction profile and retraction rates vary by two orders of magnitude,” Jonas Oppenlaender, author of the February preprint and a researcher at the University of Oulu in Finland, told Retraction Watch. “This reflects different editorial cultures and detection strategies, not just different levels of misconduct.”

Oppenlaender examined data from the Retraction Watch Database spanning 1997 to early 2026 to identify the top nine publishers with the most retractions. He also included the Association for Computing Machinery (ACM), “because it is a major professional-society publisher that has not previously been examined in cross-publisher retraction studies,” he wrote in the preprint.

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Swiss court clears sleuth in defamation case, awards him legal costs

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An appeals court in Switzerland has overturned a 2025 defamation conviction against a sleuth who had identified dozens of conference proceedings with signs of citation manipulation. The ruling orders the plaintiff to pay the sleuth’s legal expenses. 

The judgment clears Solal Pirelli, a software engineer in Lausanne, in a lawsuit filed against him in 2023 by Shadi Aljawarneh, a computer scientist at the Jordan University of Science and Technology. 

The case stemmed from a blog post Pirelli published in January 2023 summarizing problems with the proceedings of conferences organized under the auspices of the Association for Computing Machinery (ACM). Aljawarneh was the chair of most of the conferences, and the proceedings included signs of citation stuffing in Aljawarneh’s favor. 

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